Global patent index - EP 0829958 A3

EP 0829958 A3 2000-04-26 - Surface acoustic wave apparatus

Title (en)

Surface acoustic wave apparatus

Title (de)

Akustische Oberflächenwellenvorrichtung

Title (fr)

Dispositif à ondes acoustiques de surface

Publication

EP 0829958 A3 (EN)

Application

EP 97116175 A

Priority

JP 24518896 A

Abstract (en)

[origin: EP0829958A2] A surface acoustic wave apparatus includes first and second series-coupled resonator filters on a surface-wave board. In each series-coupled resonator filter, the ground electrodes of IDTs disposed at both sides of the center IDT and adjacent to reflectors are connected to different ground electrodes formed on the same layer in the package, with at least two bonding wires.

IPC 1-7 (main, further and additional classification)

H03H 9/64

IPC 8 full level (invention and additional information)

H03H 9/25 (2006.01)

CPC (invention and additional information)

H03H 9/1071 (2013.01); H03H 9/6466 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0829958 A2 19980318; EP 0829958 A3 20000426; EP 0829958 B1 20051130; DE 69734753 D1 20060105; DE 69734753 T2 20060608; JP 3227645 B2 20011112; JP H1093381 A 19980410; US 5966060 A 19991012

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